Delta I=1/2 rule from staggered fermions

Details Delta I=1/2 rule from staggered fermions Delta I=1/2 rule from staggered fermions

1998-09-15

arxiv.org/abs/hep-lat/9809115v1

Nucl.Phys.Proc.Suppl. 73 (1999) 309-311

Physics

High Energy Physics

High Energy Physics - Lattice

LATTICE98(matrixelement)

Scientific paper

10.1016/S0920-5632(99)85057-9

We present our latest results for the Delta I=1/2 rule, obtained on quenched ensembles with beta=6.0 and 6.2, and a set of N_f=2 configurations with beta=5.7. The statistical noise is quite under control. We observe an enhancement of the Delta I=1/2 amplitude consistent with experiment, although the systematic errors are still large. We also present a non-perturbative determination of Z_P, Z_S and the strange quark mass. We briefly discuss our progress in calculating epsilon-prime.

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